You can view the members of any public community or follow any public community when you want to receive the latest updates from that community. If you are a community member, you can send emails to your fellow members.

You can leave a community at any time if you no longer want to be a member.

Following communities
Follow a community when you want to be notified about the latest updates to the community, including updates to community content, for example, community activities, blogs, files, forums, wikis, and events. You are not automatically sent these notifications if you are a member of the community; you must follow the community to receive them.

Categorizing communities with tags
A tag is a keyword that you assign to a community to categorize it and make it easy to find. Tag collections in Communities display the tags according to the view that you have currently selected.

Leaving communities
You can cancel your membership in a community if you no longer want to participate in that community.